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Finding the Fourth Proportional to 5,272.66, 7,923.36 and 2,809.24

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Solution

The fourth proportional to 5,272.66, 7,923.36 and 2,809.24 is: 4,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.66 : 7,923.36 = 2,809.24 : x
  2. Step 2: Convert to fraction form
    5,272.66/7,923.36 = 2,809.24/x
  3. Step 3: Cross multiply
    5,272.66x = 7,923.36 × 2,809.24
  4. Step 4: Simplify right side
    5,272.66x = 22,258,619.85
  5. Step 5: Solve for x
    x = 22,258,619.85/5,272.66
  6. Step 6: Final answer
    x = 4,221.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.